https://bugs.winehq.org/show_bug.cgi?id=50471
--- Comment #11 from Infidelus winehq20@melsplace.co.uk --- There's a thread on the Linux Mint forums that addresses this issue as well which mentions the issues is actually related to an untrusted Symantec certificate:
https://forums.linuxmint.com/viewtopic.php?f=47&t=342186&uid=248652